flanged butt weld

例句：

1. 1.The flanged butt weld was the weakest link in the assembly process.
   凸缘对接焊缝是组装过程中最薄弱的环节。
2. 2. The flanged butt weld was prone to fatigue failure.
   凸缘对接焊缝容易疲劳失效。
3. 3.The flanged butt weld was a critical component of the structural integrity of the ship.
   凸缘对接焊缝是船舶结构完整性的关键部件。